CN1767121A - Creepage circuit breaker - Google Patents
Creepage circuit breaker Download PDFInfo
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- CN1767121A CN1767121A CN 200510116922 CN200510116922A CN1767121A CN 1767121 A CN1767121 A CN 1767121A CN 200510116922 CN200510116922 CN 200510116922 CN 200510116922 A CN200510116922 A CN 200510116922A CN 1767121 A CN1767121 A CN 1767121A
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Abstract
To improve a switch for breakdown strength test mounted on a ground fault interrupter for its operability, visual confirmation of ON/OFF action position, and interlocking function with an opening/closing mechanism, and to add a switch without changing the layout of main components of the interrupter. A manual switch 11 for testing the breakdown strength for closing/opening a feeding circuit between a ground fault detecting circuit 7 and a main circuit, comprises an assembly unit, consisting of a switch body 16, a switch operation part 17 of push/twist lock type for ON/OFF operation of the contact of the switch body, and an actuator 18 interlocked with the switch operation part arranged in the space beside a zero-phase current transformer 6 in the body case 12 of the interrupter. The operation end of the actuator is made to face a trip cross bar 15, at the arranged position to mechanically interlock with it. The trip cross bar 15 is driven and arrested at a latch-releasing position, interlocked with the OFF operation of the switch for testing breakdown strength, to trip the interrupter.
Description
Technical field
The present invention relates to be applicable to the residual current circuit breaker low-voltage distribution system, that have overcurrent protection and ground protection function; specifically; relate to residual current circuit breaker is insulated, during withstand voltage test, as the proof voltage test of the guard block that electric-leakage detection circuit is disconnected from main circuit package assembly with switch.
Background technology
Protection machine as the low-voltage distribution system has Inturruptor for sub-line, residual current circuit breaker, and the residual current circuit breaker that occurs on (Japan) domestic market generally all is the residual current circuit breaker with excess current protective function and ground protection function now.In addition, in nearest residual current circuit breaker, in order to improve user's ease of use, except the Inturruptor for sub-line, the residual current circuit breaker that make identical frames is the main body case of identical appearance size, also make critical piece general and the residual current circuit breaker monomer structure that constitutes becomes main flow (for example, with reference to patent documentation 1) just gradually as much as possible.
As the earth leakage protective parts in this residual current circuit breaker; be equipped with main circuit and detect the zero phase current transformer of unsymmetrical current and detect the electric-leakage detection circuit (electronic circuit that contains the IC chip) that ground fault takes place, receive the output signal of electric-leakage detection circuit and make circuit breaker switching mechanism throw off (trip) action from the secondary output level of zero phase current transformer as Primary Conductor.In addition, be furnished with power line as the control power supply of above-mentioned electric-leakage detection circuit between main circuit and electric-leakage detection circuit, the voltage between phases of rectification main circuit is powered to electric-leakage detection circuit.
On the other hand, the product of residual current circuit breaker has specification to the phase insulation endurance that main circuit the possessed regulation of carrying each phase on main body case, therefore, each product is insulated and withstand voltage test (million survey (megatest)) confirms whether to guarantee the dielectric strength stipulated.This insulation, withstand voltage test are that the main circuit contact in residual current circuit breaker is under OFF (disconnection) state, apply main circuit terminal alternate that test voltage carries out, its test voltage is by the rated voltage defined of each residual current circuit breaker, for example, rated voltage is that the test voltage of the residual current circuit breaker of 400～600V is 2500V.
Yet, when carrying out this insulation, withstand voltage test, experimentize if above-mentioned electric-leakage detection circuit is connected on the main circuit like this, might be destroyed as the electric-leakage detection circuit of electronic circuit because of the test high pressure.Therefore, in order to insulate at an easy rate at the use scene of residual current circuit breaker, withstand voltage test, present stage proposes to disclose following circuit breaker, promptly, proof voltage test switch (million slowdown monitoring switch) is installed in the residual current circuit breaker main body case, the structure that interlock comes the power supply circuits of on/off electric-leakage detection circuit in the ON/OFF of circuit breaker (closure/disconnection) operation, and the test of disconnection (OFF) operation proof voltage makes electric-leakage detection circuit disconnect from main circuit with switch, make circuit breaker that circuit breaker throws off action by force (for example simultaneously, with reference to patent documentation 2), what Fig. 6 represented is the circuit diagram of this residual current circuit breaker.
In Fig. 6, the 1st, corresponding to the main circuit conductor of R, S, each phase of T, the 2nd, the main circuit contact of circuit breaker, the 3rd, the open-close mechanism section of main circuit contact 2, the 4th, the opening and closing operations handle, the 5th, detect overload electric current and short circuit current and make open-close mechanism section 3 throw off the overcurrent discharge mechanism of action.In addition, take place and make circuit breaker throw off the electric leakage discharge mechanism of action for the ground connection of detecting distribution line, it comprise with the main circuit conductor 1 of R, S, T phase detect as Primary Conductor the unsymmetrical current of main circuit zero phase current transformer 6, detect the electric-leakage detection circuit 7 (electronic circuit that contains the IC chip) that ground connection takes place and receive the disengagement coil unit 8 that moves from the output of electric-leakage detection circuit 7 according to the secondary output level of zero phase current transformer 6.
Here, electric-leakage detection circuit 7 is as its control power supply, via and main circuit conductor 1 between power line 9 and the rectification circuit 10 laid come the voltage between phases of main circuit 1 is powered, these power supply circuits are tested with the proof voltage in the patent documentation 2 and are connected with switch 11.Therefore, when the insulation of carrying out residual current circuit breaker, withstand voltage test, before test, make the proof voltage test be in OFF (disconnection), thereby electric-leakage detection circuit 7 is disconnected from main circuit with switch 11.Wherein, in illustrated embodiment, be that R, the S of direct current conversion main circuit, each phase voltage of T phase are powered, but also the voltage between phases of R-T phase supplied with electric-leakage detection circuit 7 sometimes.
Patent documentation 1:(Japan Patent) No. 3246562 specification of special permission
Patent documentation 2:(Japan Patent) spy opens the 2004-199881 communique
Summary of the invention
For the residual current circuit breaker of above-mentioned unibody construction, the proof voltage test is installed when use switch when appending in its main body case inside, except guaranteeing being provided with the space of switch, also be subjected to its operability, and the various restrictions of aspect such as circuit breaker switching mechanism interlocking.
Promptly, for with distribution with the unified residual current circuit breaker of overall dimension of circuit-breaker, it is compared with circuit-breaker with distribution, the functional part of zero phase current transformer, electric-leakage detection circuit etc. is more, in its main body case, almost have no space ground and gather and be assembled with various main function components, therefore be difficult to guarantee in practice the space of the proof voltage test of new assembling with switch.In addition, proof voltage test with the operability of switch, with aspect such as circuit breaker switching mechanism interlocking function, also requirement has very high reliability.
At described aspect, in the residual current circuit breaker that patent documentation 2 is disclosed, be to be housed in the switch-box with the small-sized slide switch of switch and to be assembled in residual current circuit breaker main body case inside as proof voltage test, the end of the actuator that is provided with on the switch cover of the slide operation type by manually opening and closing this switch is stood facing each other mutually with the cross bar that separates of circuit breaker switching mechanism, make the proof voltage test can form interlocking with separating between the cross bar with switch.
Yet, in the package assembly of this switch, under the user mode of the case lid of cut-off breaker, ON/OFF (closure/disconnection) operate condition of switch of Visual Confirmation proof voltage test from the outside intuitively, in addition, for the mutual interlocking gear that the separation cross bar constraint of circuit breaker is remained on the latch off-position in the position of switch OFF (disconnection), when cross bar being applied the restoring force of the direction that resets by circuit breaker lever operated, also exist proof voltage test to be subjected to the influence of this operating physical force and turn back to the problem of the function aspects such as position of ON (closure) from OFF (disconnection) position with switch, therefore, the method that waits in expectation its reliability is further improved.
The present invention makes in view of the above problems, its purpose is to provide a kind of improved package assembly and configuration, have the residual current circuit breaker of proof voltage test with switch, it is to have a proof voltage test residual current circuit breaker with switch in the above-mentioned patent documentation 2, can realize the operability of proof voltage test with switch, the Visual Confirmation of ON/OFF operating position, and with the improvement of the interlock function of circuit breaker switching mechanism, and can under the situation that does not change the floor plan that is installed on the main function components in the breaker body case, append proof voltage test switch is installed.
To achieve these goals; according to the present invention; it is residual current circuit breaker with overcurrent and ground protection function; wherein; the main circuit contact is installed in main body case; switching mechanism; operating grip; the overcurrent discharge mechanism; and the electric leakage discharge mechanism that comprises zero phase current transformer and electric-leakage detection circuit; and; be equipped with manual manipulation mode and connect; disconnection is laid in the proof voltage test switch of the power supply circuits between described electric-leakage detection circuit and the main circuit; circuit breaker is being insulated; during withstand voltage test; test is implemented opening operation with switch to proof voltage; make electric-leakage detection circuit to break away from, wherein from main circuit
Described proof voltage test uses switch by switch main body, the contact of switch main body is carried out the revolving switching manipulation of the pushing portion of closure/opening operation, and the module units of the actuator that is connected with this switching manipulation portion constitutes and is built in the main body case of circuit breaker, and, the operating side that makes actuator at this embedded position and circuit breaker switching mechanism separate cross bar stand facing each other carry out mechanical interlocked, by the opening operation of this proof voltage test with switch, via actuator described separation cross bar is driven to the stop off-position, thereby circuit breaker is disconnected, simultaneously, can remain on stop off-position (first aspect) with separating the cross bar constraint.
In addition, according to the present invention, above-mentioned proof voltage test can constitute in the following manner with the concrete assembled configuration and the configuration of switch.
(1) the described proof voltage test button of the switching manipulation portion of switch by the pushing rotary operation type, guide the support oriented device of the tubular of this button, and be built in this support oriented device and the driving spring that described button applies pushing force constituted towards open position, described button have to the side outstanding and with the jut of actuator face-off, on described support oriented device, cutting be formed with embed described jut and on closure/disconnection direction the guiding grooving of call-on button, and from the terminal of described guiding grooving begin in the circumferencial direction displacement and with button engage remain on make position in conjunction with stage portion (second aspect).
(2) in the formation of above-mentioned (1), described actuator is as the linearly operating formula, its base portion leads slidably and is supported on the proof voltage test with on the Cell of switch, and makes the jut of described button be connected (third aspect) with described actuator face-off in this Support Position.
(3) in the formation of above-mentioned (1), described actuator is as turning handle, and the one end is propped up in the proof voltage test by axle and uses on the Cell of switch, and makes the jut of described button be connected (fourth aspect) with described actuator face-off in this Support Position.
(4) and, by the zero phase current transformer of the main body case that is built in circuit breaker and connect the main circuit conductor of " コ " shape of this current transformer and the space that sidewall surrounded of main body case in, the built-in proof voltage test switch that is equipped with, and match with the operating side of described switching manipulation portion and on the upper cap of main body case, offer action pane (aspect the 5th).
In testing with switch, the proof voltage of above-mentioned formation has following effect:
(1) test is used the operating portion of switch concerning proof voltage, because pushing rotary operation type button latch can be fixed on ON/OFF (closure/disconnection) position and can carry out the maintenance of ON/OFF (closure/disconnection) operation and ON/OFF (closure/disconnection) position reliably, simultaneously, because can see the head of button is to give prominence to or enter from the action pane of offering at the case lid of circuit breaker, therefore can tests proof voltage outside and confirm with ON/OFF (closure/disconnection) state of switch.
(2) in addition, corresponding with this switch ON/OFF operation, the actuator that is connected on the jut of button of switching manipulation portion remains on going-back position and operating position with the separation cross bar constraint of circuit breaker switching mechanism, by like this, after insulation, the proof voltage experiment of residual current circuit breaker finish, short ofly manually proof voltage test being returned to the position of ON (closure) with switch, is can not the contact of main circuit be resetted by the lever operated of circuit breaker then.Therefore, can prevent to restart to use the proof voltage test with behind the switch the inoperative situation of its ground connection measuring ability reliably because of forgetting that the test of access proof voltage occurs in switch.
(3) and, space between the side by applying flexibly the zero phase current transformer of in the main body case of circuit breaker, installing and the sidewall of main body case and the proof voltage test of blocking is accommodated configuration within it with switch, therefore, can not change on residual current circuit breaker and distribution the basis, append at an easy rate proof voltage test switch is installed with the floor plan of circuit-breaker and common part and function part.
Description of drawings
Fig. 1 is that expression the be equipped with proof voltage corresponding with embodiments of the invention tested the integrally-built stereogram of residual current circuit breaker of using switch.
Fig. 2 is the structure chart of the proof voltage test of Fig. 1 with switch, and (a) and (b) are represented the ON of switch, the stereoscopic figure of OFF state respectively.
Fig. 3 is the switching manipulation portion of presentation graphs 2 and the assembling stereogram of actuator.
Fig. 4 is the structure of the switch main body of presentation graphs 2, the ideograph of action, and (a) and (b) are represented the ON of switch, the movement state diagram of OFF state respectively.
Fig. 5 is the structure chart of the expression proof voltage test different with the embodiment of Fig. 2 with switch, and (a) and (b) are represented the ON of switch, the stereoscopic figure of OFF state respectively.
Fig. 6 represents to be equipped with the circuit diagram of proof voltage test with the residual current circuit breaker of switch.
Symbol description:
1 main circuit conductor
2 main circuit contacts
3 open-close mechanism sections
4 operating grips
5 overcurrent discharge mechanisms
6 zero phase current transformers
7 electric-leakage detection circuits
8 separate winding unit
11 proof voltages test switch
12 main body cases
The 12b upper cap
The 12c action pane
15 separate cross bar (trip crossbar)
16 proof voltages test switch main body
17 switching manipulation portions
The 17a button
The 17b support oriented device
The 17c driving spring
The 17d jut
17e guides grooving
17f engages stage portion
18 actuators
Embodiment
Below, based on the embodiment shown in Fig. 1～5 the specific embodiment of the present invention is described.Wherein, in illustrated embodiment, to marking prosign with the corresponding same parts of Fig. 6.
What at first, Fig. 1 represented is to carry the overall structure figure of proof voltage test of the present invention with the residual current circuit breaker of switch is installed.In Fig. 1, the 12nd, the main body case of the residual current circuit breaker that constitutes by the segmenting structure of lower tank 12a and upper cap 12b.In this main body case 12, except the proof voltage test of the switching mechanism 3, operating grip 4, overcurrent discharge mechanism 5, zero phase current transformer 6, electric-leakage detection circuit 7 (printed circuit board (PCB)) and its detailed structure of aftermentioned that are included in the main circuit contact described in Fig. 6 functional part, also comprise that lay like that as shown and terminal for connecting 13 U, V, each corresponding main circuit conductor 1 of W, explosion chamber 14 and the separation cross bar 15 that is connected with the latch (latch) of switching mechanism 3 with switch 11 etc.In addition, the test of above-mentioned proof voltage is accommodated with switch 11 and is configured in by being positioned at zero phase current transformer 6 sides and connecting the main circuit conductor 1 (Primary Conductor of zero phase current transformer) of the curved shape of zero phase current transformer and the outer wall of main body case 12 is surrounded space on every side.
Here, the proof voltage test constitutes with switch 11 and is built-in with the switch main body 16 that opens and closes contact mechanism, come the switching manipulation portion 17 of the switching contact of closed (ON)/disconnection (OFF) switch main body 16 by manual operation, and be connected in this operating portion 17 of switch and with above-mentioned module units structure of separating the actuator 18 of cross bar 15 interlockings, when the insulation of carrying out residual current circuit breaker as described above and proof voltage experiment, if manually the proof voltage test is disconnected (OFF) operation with switch 11, then actuator 18 separates cross bar 15 with its interlock towards the driving of latch off-position, forcibly makes residual current circuit breaker throw off action.In addition, on the upper cap 12b of breaker body case 12, offer action pane 12c corresponding to the proof voltage test with the position of the switching manipulation portion 17 of switch 11, as following, use screwdriver (screwdriver) to come the proof voltage test is carried out closure (ON)/disconnection (OFF) operation with switch 11 from the outside.
Then, describe by the detailed structure of Fig. 2～4 pair above-mentioned proof voltage test with switch 11.Promptly, the proof voltage test is made of the unit structure that is arranged on above-mentioned switch main body 16, switching manipulation portion 17 and actuator 18 on the Cell 19 with switch 11, this Cell 19 at " コ " font that bends in the lower tank 12a of breaker body case 12 shown in Figure 1, and is inserted into from the top in the space between the Primary Conductor that connects zero phase current transformer 6 and locatees and be configured.
Here, switching manipulation portion 17 be by pushing/rotary operation type button 17a, embed this button 17a and to its carry out above-below direction guiding tubular support oriented device 17b and as the exploded view of Fig. 3 is described in detail is built in this support oriented device and towards disconnecting (OFF) position the assembly that above-mentioned button applies the driving spring 17c that pushes active force is constituted, around above-mentioned button 17a, have the jut 17d that gives prominence to towards the side of support oriented device 17b and stand facing each other mutually with actuator
On support oriented device 17b, cutting forms to have and embeds above-mentioned jut 17d and at closed (ON)/the disconnect guiding grooving 17e of the above-below direction of call-on button 17a between (OFF) position, and begin from the lower end of above-mentioned guiding grooving 17e along the circumferencial direction displacement and with the jut 17d engaging of button remain on closure (ON) position in conjunction with the stage 17f of portion.Wherein, on the end face of the top of above-mentioned button 17a, be formed with the groove that is used to inject screwdriver (screwdriver).
In addition, actuator 18 and be listed in the side of operating portion 17 and be set at Cell 19 above, its operative end 18a stands facing each other mutually with the cross bar 15 (with reference to Fig. 1) that separates of circuit breaker, the base portion 18b of actuator is embedded in the gathering sill 19a of a top side that is formed at Cell 19 and is directed to support along direction of action, and in this position, operation panel (backing plate) 18c of the screen shape that extends upward from base portion 18b stands facing each other mutually with the jut 17d of button 17a and connects.
In addition, for switch main body 16, as shown in Figure 4, connect the assembly that lead 16a went up and erected contact chip 16b that relative pair of plate-shaped spring makes and the operation strip 16c by coming in and going out the insulant that closed (ON)/disconnect (OFF) contact disposes between the contact of this contact chip 16b about being fixed on by the lower end and constitute, above-mentioned operation strip 16c can be freely to rotate by connector be connected with the button 17a of above-mentioned switching manipulation portion 17.Wherein, as shown in Figure 2, on the open surface of Cell 19, has the contact mechanism that covers this switch main body 16 and the insulating lid that moves up and down with button 17a.
In the above-described configuration, when after the button 17a with switching manipulation portion 17 presses down as far as possible, rotating in a counter-clockwise direction, the operation strip 16c of switch main body 16 descends, the switching contact of contact chip 16b becomes closure (ON) (with reference to Fig. 4 a), simultaneously, the jut 17d of button 17a is only blocked below the joint stage portion 17 on being formed at support oriented device 17b, and is locked in this closure (ON) position.In addition, jut 17d retreats from the operation panel 18c of actuator 18, removes the constraint to actuator 18.On the other hand, ON position at Fig. 2 (a), when button 17a rotates in a clockwise direction and makes jut 17d when the joint stage portion 17f of support oriented device 17b throws off, button 17a is subjected to the elastic force effect of driving spring 17c (with reference to Fig. 3) and moves up, the operation strip 16c of switch main body 16 is driven in this and moves and move up, and clamp-ons (with reference to figure 4 (b)) between two from about the contact chip 16b.Therefore, the switching contact is thrown off and is made switch become disconnection (OFF) state.In addition, the jut 17d of button 17a with actuator 18 along direction of action by extruding and driving, simultaneously, jut 17d embeds among the guiding grooving 17e of support oriented device 17b and with actuator 18 constraints and remain on the position that is ejected.
Secondly, the operating sequence and the holding function that are equipped with on the main body case 12 of circuit breaker that above-mentioned proof voltage test is insulated with the residual current circuit breaker of switch 11 and proof voltage during withstand voltage test is tested with switch 11 are described.
Promptly, under the general user mode of residual current circuit breaker, proof voltage test is depressed the button 17a of operating portion with switch 11 and is remained on switch closure (ON) state shown in Fig. 2 (a), and actuator 18 is not subjected to the constraint of jut 17d and becomes free state with respect to the separation cross bar 15 of circuit breaker.Under this state, if residual current circuit breaker is closed (ON), then as shown in Figure 6, the voltage between phases of main circuit is powered to electric-leakage detection circuit 7 with switch 11 by the proof voltage test.On the other hand, when residual current circuit breaker being insulated with withstand voltage test, as shown in Figure 1, the action pane 12c place that on the upper cap 12b of circuit breaker, offers, screwdriver (screwdriver) inserted and make button 17a with rotation clockwise, become the state of Fig. 2 (b), at this moment, the contact of switch main body 16 becomes disconnection (OFF) and electric-leakage detection circuit 7 is disconnected from the Primary Conductor 1 of circuit breaker, simultaneously, to separate cross bar 15 by the jut 17d of button 17a along the outstanding actuator 18 of direction of action drives towards the position that latch is thrown off, thereby cut-off switch is thrown off action and make separation cross bar 15 simultaneously in the restrained maintenance in this position, so far, insulation and withstand voltage test are ready.
Then, after insulation and withstand voltage test finish, when making the proof voltage test turn back to closure (ON) position with manual mode (with reference to Fig. 2 (a)), remove separating the constraint of cross bar 15 by actuator 18 with switch 11.Therefore, owing in case after the handle 4 (with reference to Fig. 1) that will be parked in the cut-off switch of disengaged position turns back to reset position, put into closure (ON) position again, main circuit contact 2 (with reference to Fig. 6) is closed, residual current circuit breaker is returned to common user mode.Wherein, at this moment, as long as the proof voltage test does not turn back to closure (ON) position with switch 11, even then operating grip 4 moves to disconnecting (OFF) position from disengaged position, open-close mechanism section 3 is resetted, therefore, can not make main circuit contact 1 enter closure state.Therefore, can avoid inserting the proof voltage test with faults such as ground connection detection, the creepage protection function of the former of switch 11 thereby the residual current circuit breaker that causes are inoperative because of forgetting.
Secondly, pair describe with Fig. 5 (a) and (b) with the corresponding embodiment of a fourth aspect of the present invention.Both, in the foregoing description shown in Figure 2, be to embed as straight-line slide block with the actuator on the switch 11 18 and be supported in the gathering sill that is formed at Cell 19 tops with being assembled in proof voltage test.Relative with it, in the embodiment of Fig. 5, actuator 18 is as turning handle and make a circulation near the mode of switching manipulation portion 17 with its rear portion and be bent to form the U word shape, mode by supporting pivot pin 18d with bearing is supported on the Cell 19, and, be equipped with in the middle part of handle with the rear of operating sheet 18c side by side, and the jut 18e that stands facing each other mutually with the jut 17d of button 17a.
In the above-described configuration, when the proof voltage test is in closure (ON) state with switch 11, shown in Fig. 5 (a), the jut 17d that is blocked the button 17a that only is locked in closure (ON) position pushes back above-mentioned jut 18e and makes actuator 18 remain on going-back position (with Fig. 2 (a) equal state).
Here, residual current circuit breaker is being insulated and during withstand voltage test, shown in Fig. 2 (b), when equally button 17a being become disconnection (OFF) with rotary manipulation clockwise and with the proof voltage test with switch 11, jut 17d makes actuator 18 carry out ram drive along direction of action, in view of the above, making actuator 18 is that fulcrum rotates to support pivot pin 18d, and the operating side of front end makes separates cross bar 15 (with reference to Fig. 1) and drive and circuit breaker is moved to the latch disengaging configuration.And after the off-test, test is carried out restorable operating sequence with embodiment illustrated in fig. 2 identical with switch 11 to proof voltage.
Claims (5)
1. residual current circuit breaker with overcurrent and ground protection function is characterized in that:
The main circuit contact is installed in main body case, switching mechanism, operating grip, the overcurrent discharge mechanism, and the electric leakage discharge mechanism that comprises zero phase current transformer and electric-leakage detection circuit, and, be equipped with manual manipulation mode and connect, disconnection is laid in the proof voltage test switch of the power supply circuits between described electric-leakage detection circuit and the main circuit, circuit breaker is being insulated, during withstand voltage test, test is implemented opening operation with switch to proof voltage, make electric-leakage detection circuit to break away from from main circuit, wherein
Described proof voltage test uses switch by switch main body, the contact of switch main body is carried out the revolving switching manipulation of the pushing portion of closure/opening operation, and the module units of the actuator that is connected with this switching manipulation portion constitutes and is built in the main body case of circuit breaker, and, the operating side that makes actuator at this embedded position and circuit breaker switching mechanism separate cross bar stand facing each other carry out mechanical interlocked, by the opening operation of this proof voltage test with switch, via actuator described separation cross bar is driven to the stop off-position, thereby circuit breaker is disconnected, simultaneously, can remain on the stop off-position with separating the cross bar constraint.
2. residual current circuit breaker as claimed in claim 1 is characterized in that:
The described proof voltage test button of the switching manipulation portion of switch by the pushing rotary operation type, guide the support oriented device of the tubular of this button, and be built in this support oriented device and the driving spring that described button applies pushing force constituted towards open position, described button have to the side outstanding and with the jut of actuator face-off, on described support oriented device, cutting be formed with embed described jut and on closure/disconnection direction the guiding grooving of call-on button, and from the terminal of described guiding grooving begin in the circumferencial direction displacement and with button engage remain on make position in conjunction with stage portion.
3. residual current circuit breaker as claimed in claim 2 is characterized in that:
Described actuator is as the linearly operating formula, and its base portion leads slidably and is supported on the proof voltage test with on the Cell of switch, and the jut of described button is connected with described actuator face-off.
4. residual current circuit breaker as claimed in claim 2 is characterized in that:
Described actuator is as turning handle, and the one end is propped up in the proof voltage test by axle and uses on the Cell of switch, and the jut of described button is connected with described actuator face-off.
5. residual current circuit breaker according to claim 1 is characterized in that:
By the zero phase current transformer of the main body case that is built in circuit breaker and connect the main circuit conductor of " コ " shape of this current transformer and the space that sidewall surrounded of main body case in, the built-in proof voltage test switch that is equipped with, and match with the operating side of described switching manipulation portion and on the upper cap of main body case, offer action pane.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-309722 | 2004-10-25 | ||
| JP2004309722A JP4556614B2 (en) | 2004-10-25 | 2004-10-25 | Earth leakage breaker |
| JP2004309722 | 2004-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1767121A true CN1767121A (en) | 2006-05-03 |
| CN1767121B CN1767121B (en) | 2011-06-15 |
Family
ID=36538244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510116922 Expired - Fee Related CN1767121B (en) | 2004-10-25 | 2005-10-25 | Leakage breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4556614B2 (en) |
| CN (1) | CN1767121B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090052B (en) * | 2006-05-23 | 2010-06-16 | 富士电机机器制御株式会社 | Creepage breaker |
| CN101079353B (en) * | 2006-05-22 | 2010-06-23 | 富士电机机器制御株式会社 | Earth leakage circuit-breaker |
| CN101335165B (en) * | 2007-06-27 | 2011-05-04 | 富士电机机器制御株式会社 | Leakage circuit breaker |
| CN101123156B (en) * | 2006-08-11 | 2011-08-10 | 河村电器产业株式会社 | Circuit breaker |
| CN102543609A (en) * | 2010-10-14 | 2012-07-04 | 富士电机机器制御株式会社 | Leakage circuit breaker for distribution board and distribution board system |
| CN102610457A (en) * | 2012-03-22 | 2012-07-25 | 浙江鼎威科技有限公司 | Device of leakage breaker for combining leakage testing with leakage reset button |
| CN108140521A (en) * | 2015-10-15 | 2018-06-08 | 松下知识产权经营株式会社 | Protection cap, breaker, earth detector and earth leakage protective device |
| CN109702347A (en) * | 2019-01-22 | 2019-05-03 | 苏州工业职业技术学院 | A kind of equipment for workpiece test and mark |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4967453B2 (en) * | 2006-05-23 | 2012-07-04 | 富士電機機器制御株式会社 | Earth leakage breaker |
| CN102044386B (en) * | 2011-01-10 | 2013-01-09 | 张永富 | Circuit breaker with switching-off locking function |
| FR2992093B1 (en) * | 2012-06-19 | 2014-06-13 | Schneider Electric Ind Sas | DEVICE FOR DISCONNECTING THE ELECTRONIC POWER SUPPLY CARD FROM THE FAULT PROCESSING CIRCUIT IN AN ELECTRICAL PROTECTION DEVICE AND APPARATUS COMPRISING SUCH A DEVICE |
| KR102073126B1 (en) * | 2016-02-12 | 2020-02-05 | 현대일렉트릭앤에너지시스템(주) | Earth leakage breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57185155U (en) * | 1981-05-21 | 1982-11-24 | ||
| JPH0536342A (en) * | 1991-07-31 | 1993-02-12 | Mitsubishi Electric Corp | Circuit breaker for wiring having leakage alarm function |
| JP4253700B2 (en) * | 2002-12-16 | 2009-04-15 | 富士電機機器制御株式会社 | Earth leakage breaker |
-
2004
- 2004-10-25 JP JP2004309722A patent/JP4556614B2/en not_active Expired - Fee Related
-
2005
- 2005-10-25 CN CN 200510116922 patent/CN1767121B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079353B (en) * | 2006-05-22 | 2010-06-23 | 富士电机机器制御株式会社 | Earth leakage circuit-breaker |
| CN101090052B (en) * | 2006-05-23 | 2010-06-16 | 富士电机机器制御株式会社 | Creepage breaker |
| CN101123156B (en) * | 2006-08-11 | 2011-08-10 | 河村电器产业株式会社 | Circuit breaker |
| CN101123157B (en) * | 2006-08-11 | 2012-05-23 | 河村电器产业株式会社 | Circuit breaker |
| CN101335165B (en) * | 2007-06-27 | 2011-05-04 | 富士电机机器制御株式会社 | Leakage circuit breaker |
| CN102543609A (en) * | 2010-10-14 | 2012-07-04 | 富士电机机器制御株式会社 | Leakage circuit breaker for distribution board and distribution board system |
| CN102610457A (en) * | 2012-03-22 | 2012-07-25 | 浙江鼎威科技有限公司 | Device of leakage breaker for combining leakage testing with leakage reset button |
| CN108140521A (en) * | 2015-10-15 | 2018-06-08 | 松下知识产权经营株式会社 | Protection cap, breaker, earth detector and earth leakage protective device |
| CN109702347A (en) * | 2019-01-22 | 2019-05-03 | 苏州工业职业技术学院 | A kind of equipment for workpiece test and mark |
| CN109702347B (en) * | 2019-01-22 | 2024-02-23 | 苏州工业职业技术学院 | Equipment for workpiece testing and marking |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4556614B2 (en) | 2010-10-06 |
| JP2006120563A (en) | 2006-05-11 |
| CN1767121B (en) | 2011-06-15 |
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